Origami-inspired perovskite X-ray detector by printing and folding  

作　　者：Henning Mescher Fabian Schackmar Robert Huber Helge Eggers Marcus Zuber Elias Hamann Georg Gramlich Julian Dangelmaier Qiaoshuang Zhang Andres Georg Rösch Thomas Zwick Gerardo Hernandez-Sosa Ulrich W.Paetzold Uli Lemmer 

机构地区：[1]Light Technology Institute(LTI),Karlsruhe Institute of Technology(KIT),Karlsruhe 76131,Germany [2]Institute of Microstructure Technology(IMT),Karlsruhe Institute of Technology(KIT),Eggenstein-Leopoldshafen 76344,Germany [3]InnovationLab(IL),Heidelberg 69115,Germany [4]Institute for Photon Science and Synchrotron Radiation(IPS),Karlsruhe Institute of Technology(KIT),Eggenstein-Leopoldshafen 76344,Germany [5]Laboratory for Applications of Synchrotron Radiation(LAS),Karlsruhe Institute of Technology(KIT),Karlsruhe 76131,Germany [6]Institute of Radio Frequency Engineering and Electronics(IHE),Karlsruhe Institute of Technology(KIT),Karlsruhe 76131,Germany

出　　处：《npj Flexible Electronics》2023年第1期471-478,共8页npj-柔性电子（英文）

基　　金：the Deutsche Forschungsgemeinschaft(DFG,German Research Foundation)under Germany’s Excellence Strategy via the Excellence Cluster 3D Matter Made to Order(EXC-2082/1-390761711);by BMBF within the funding for the programme Forschungslabore Mikroelektronik Deutschland(ForLab)。

摘　　要：X-ray detectors are of pivotal importance for the scientific and technological progress in a wide range of medical,industrial,and scientific applications.Here,we take advantage of the printability of perovskite-based semiconductors and achieve a high X-ray sensitivity combined with the potential of an exceptional high spatial resolution by our origami-inspired folded perovskite X-ray detector.The high performance of our device is reached solely by the folded detector architecture and does not require any photolithography.The design and fabrication of a foldable perovskite sensor array is presented and the detector is characterized as a planar and as a folded device.Exposed to 50 kVp−150 kVp X-ray radiation,the planar detector reaches X-ray sensitivities of 25−35μC/(Gyaircm^(2)),whereas the folded detector achieves remarkably increased X-ray sensitivities of several hundredμC/(Gyaircm^(2))and a record value of 1409μC/(Gyaircm^(2))at 150 kVp without photoconductive gain.Finally,the potential of an exceptional high spatial resolution of the folded detector of more than 20 lp/mm under 150 kVp X-ray radiation is demonstrated.

关 键 词：PEROVSKITE exceptional PLANAR 

分 类 号：O57[理学—粒子物理与原子核物理]